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Catheter balloon formed from a polymeric composite

  • US 5,344,401 A
  • Filed: 05/12/1993
  • Issued: 09/06/1994
  • Est. Priority Date: 12/20/1991
  • Status: Expired due to Term
First Claim
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1. A method for strengthening a portion of a catheter balloon, comprising the steps of:

  • providing a catheter balloon made from a first polymer, said balloon having a first region of relatively high tensile strength where said first polymer is biaxially oriented, and having a second region of relatively low tensile strength where said first polymer is not biaxally oriented;

    applying a liquid coating of a second polymer to a surface of only said second region, said second polymer having a relatively high tensile strength; and

    raising said balloon and said coating to a sufficiently high temperature to form a high tensile strength composite of said first and second polymers.

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